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Commit 155ab65c authored by Dan Carpenter's avatar Dan Carpenter Committed by Greg Kroah-Hartman
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wifi: cfg80211: debugfs: fix return type in ht40allow_map_read() 



[ Upstream commit d776763f48084926b5d9e25507a3ddb7c9243d5e ]

The return type is supposed to be ssize_t, which is signed long,
but "r" was declared as unsigned int.  This means that on 64 bit systems
we return positive values instead of negative error codes.

Fixes: 80a3511d ("cfg80211: add debugfs HT40 allow map")
Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/YutvOQeJm0UjLhwU@kili


Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent dede80aa

net/wireless/debugfs.c

+2 −1
Original line number Diff line number Diff line
@@ -68,9 +68,10 @@ static ssize_t ht40allow_map_read(struct file *file, 
{

	struct wiphy *wiphy = file->private_data;

	char *buf;

	unsigned int offset = 0, buf_size = PAGE_SIZE, i, r;

	unsigned int offset = 0, buf_size = PAGE_SIZE, i;

	enum nl80211_band band;

	struct ieee80211_supported_band *sband;

	ssize_t r;



	buf = kzalloc(buf_size, GFP_KERNEL);

	if (!buf)